So Microsoft released IE8 RC1 on Friday (well at least thats when I got an update notification).

I've been using it ever since - it's not a huge change from the recent Beta, which is good, because it is actually a great browser with some handy debugging tools.

 http://www.microsoft.com/windows/internet-explorer/beta/default.aspx

Be warned, the installation requires 3 reboots, and the second reboot seems to reset your desktop to the factory default, only for it to reappear on the third reboot. Not a nice experience!